Why transition coding for power minimization of on-chip buses does not work
Encoding techniques which minimize the self- or coupling activity of buses are often proposed to reduce power dissipation on system buses. In this paper, we investigate the efficiency of several coding schemes for on-chip buses with respect to overall power dissipation. The power of the codec system...
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| creator | Kretzschmar, C. Nieuwland, A.K. Muller, D. |
| description | Encoding techniques which minimize the self- or coupling activity of buses are often proposed to reduce power dissipation on system buses. In this paper, we investigate the efficiency of several coding schemes for on-chip buses with respect to overall power dissipation. The power of the codec systems was estimated by power simulations with the lay-outs and related to the savings on the bus. We derived an expression for the energy efficiency of the codecs as a function of bus length (capacitive load). Despite the fact that adaptive schemes could obtain up to 40% savings, the bus lengths required to reduce the overall power consumption are not realistic for on-chip buses. |
| doi_str_mv | 10.1109/DATE.2004.1268897 |
| format | Conference Proceeding |
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| ispartof | Proceedings Design, Automation and Test in Europe Conference and Exhibition, 2004, Vol.1, p.512-517 Vol.1 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Capacitance CMOS technology Codecs Coupling circuits Encoding Energy consumption Minimization Power dissipation System buses Wire |
| title | Why transition coding for power minimization of on-chip buses does not work |
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